CN101925454B - Reinforced hose - Google Patents

Reinforced hose Download PDF

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Publication number
CN101925454B
CN101925454B CN2008801254281A CN200880125428A CN101925454B CN 101925454 B CN101925454 B CN 101925454B CN 2008801254281 A CN2008801254281 A CN 2008801254281A CN 200880125428 A CN200880125428 A CN 200880125428A CN 101925454 B CN101925454 B CN 101925454B
Authority
CN
China
Prior art keywords
flexible pipe
enhancing section
fabric enhancing
fiber
hot blast
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN2008801254281A
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Chinese (zh)
Other versions
CN101925454A (en
Inventor
A·弗拉什耐克尔
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Polyamide High Performance GmbH
Original Assignee
Polyamide High Performance GmbH
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Filing date
Publication date
Application filed by Polyamide High Performance GmbH filed Critical Polyamide High Performance GmbH
Publication of CN101925454A publication Critical patent/CN101925454A/en
Application granted granted Critical
Publication of CN101925454B publication Critical patent/CN101925454B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L11/00—Hoses, i.e. flexible pipes
    • F16L11/04—Hoses, i.e. flexible pipes made of rubber or flexible plastics
    • F16L11/08—Hoses, i.e. flexible pipes made of rubber or flexible plastics with reinforcements embedded in the wall
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B1/00—Layered products having a general shape other than plane
    • B32B1/08—Tubular products
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/15—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor incorporating preformed parts or layers, e.g. extrusion moulding around inserts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D23/00—Producing tubular articles
    • B29D23/001—Pipes; Pipe joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B25/00—Layered products comprising a layer of natural or synthetic rubber
    • B32B25/02—Layered products comprising a layer of natural or synthetic rubber with fibres or particles being present as additives in the layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B25/00—Layered products comprising a layer of natural or synthetic rubber
    • B32B25/10—Layered products comprising a layer of natural or synthetic rubber next to a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B25/00—Layered products comprising a layer of natural or synthetic rubber
    • B32B25/12—Layered products comprising a layer of natural or synthetic rubber comprising natural rubber
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B25/00—Layered products comprising a layer of natural or synthetic rubber
    • B32B25/14—Layered products comprising a layer of natural or synthetic rubber comprising synthetic rubber copolymers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/022—Non-woven fabric
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/024—Woven fabric
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/026—Knitted fabric
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • B29C48/10—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels flexible, e.g. blown foils
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/15—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor incorporating preformed parts or layers, e.g. extrusion moulding around inserts
    • B29C48/151—Coating hollow articles
    • B29C48/152—Coating hollow articles the inner surfaces thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
    • B29K2105/08—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts of continuous length, e.g. cords, rovings, mats, fabrics, strands or yarns
    • B29K2105/0809—Fabrics
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2277/00—Use of PA, i.e. polyamides, e.g. polyesteramides or derivatives thereof, as reinforcement
    • B29K2277/10—Aromatic polyamides [Polyaramides] or derivatives thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2313/00—Use of textile products or fabrics as reinforcement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2023/00—Tubular articles
    • B29L2023/005—Hoses, i.e. flexible
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2250/00—Layers arrangement
    • B32B2250/03—3 layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/02—Synthetic macromolecular fibres
    • B32B2262/0261—Polyamide fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/14—Mixture of at least two fibres made of different materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/54—Yield strength; Tensile strength
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/714—Inert, i.e. inert to chemical degradation, corrosion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/726—Permeability to liquids, absorption
    • B32B2307/7265—Non-permeable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2597/00—Tubular articles, e.g. hoses, pipes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2605/00—Vehicles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P11/00—Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
    • F01P11/04—Arrangements of liquid pipes or hoses

Abstract

The invention relates to a hose, comprising an elastomeric material and a textile reinforcement, the textile reinforcement being made substantially of fibers selected from the group of aliphatic polyamides, characterized in that the heat shrinkage of the fibers is smaller than 2.5%.

Description

Strengthen flexible pipe
Technical field
The present invention relates to a kind of made by elastomeric material, flexible pipe with fabric enhancing section, relate in particular to a kind of fabric enhancing section based on Fypro.
This flexible pipe is particularly suitable for being used in the cooling system.In the automobile engine of the water-cooled in modern times or liquid cools, cooling system has the enhancing flexible pipe of being made by flexible material, and liquid flow to cooler by this enhancing flexible pipe and circulates from this cooler with flowing out.
Background technology
DE 2 063 641 discloses a kind of enhancing flexible pipe, and this enhancing flexible pipe preferably strengthens by the single layer that is comprised of the polyester textile of processing or RIPSTOP.
At present, aramid fibre also is used for this purposes.Yet when the cooling medium operating temperature raise, the flexible pipe enhancing section that is comprised of polyester fiber or aramid fibre only had very little hydrolytic resistance.
But the good hydrolytic stability of fabric enhancing section is the prerequisite of making than the flexible pipe of thin-walled, because in this flexible pipe, water can be easier to the stability that diffuses in the reinforcing material and reduce enhancing section.
The flexible pipe that has based on the fabric enhancing section of fat (fat) polyamide fiber has better hydrolytic resistance with respect to aromatic polyamides or polyester.Yet this have based on the surface irregularity of the flexible pipe of the fabric enhancing section of aliphatic polyamide fibre or inhomogeneous.
For example this those skilled in the art are called the polymer of nylon, particularly polyamide 6, polyamide 6 .6 or polyamide 4.6, belong to the classification of aliphatic polyamide.
Summary of the invention
Therefore the object of the invention is to, a kind of flexible pipe with fabric enhancing section is provided, wherein reduced at least the shortcoming of prior art.This flexible pipe especially will also have more smoothly when having good hydrolytic stability, uniform surface.
This purpose is realized by a kind of flexible pipe of elastomeric material and fabric enhancing section that comprises, wherein said fabric enhancing section is basically by being selected from the fibrous of aliphatic polyamide class, it is characterized in that, the hot blast shrinkage factor of employed fiber is less than 2.5%, and this hot blast shrinkage factor is determined under the condition of 180 ℃, 2 minutes and 5mN/tex pretension according to DIN 53866 standards.
The specific embodiment
" fiber " this concept comprises the linear configuration piece that is formed by one or more monofilament/ultimate fibre, and wherein said monofilament can be long filament or short fiber.The linear configuration piece that is formed by plurality of threads is also referred to as polyfilament yarn, and the linear configuration piece that is formed by a threads is called monofilament yarn.
" basically by the fibrous fabric enhancing section that is selected from the aliphatic polyamide class " can be regarded as such fabric enhancing section, and namely this fabric enhancing section is main at least fibrous by what select from the classification of aliphatic polyamide.Described fabric strengthens the percentage by weight of quality award from the ministry choosing at least 60% by being selected from the fibrous of aliphatic polyamide class.In addition, this fabric strengthen the percentage by weight, at least 80% percentage by weight of quality award from the ministry choosing at least 70% and particularly preferably at least 90% percentage by weight by being selected from the fibrous of aliphatic polyamide class.Certainly, the percentage by weight that this fabric enhancing section also can 100% is by being selected from the fibrous of aliphatic polyamide class.
The group of elastomeric material comprises synthetic and natural polymer, and these polymer are characterised in that they just can extend and be crooked under very little power effect, and can reduce, and namely get back to their initial shapes in the situation that does not have the power effect.The elastomeric material that a kind of the present invention of being applicable to strengthens flexible pipe is rubber.Within the scope of the invention, material " rubber " can be regarded as the natural or synthetic rubber of sulfuration.Synthetic rubber is made by styrene and butadiene mostly; Other basic material has styrene-acrylate (Styrolacrylat), pure acrylate (Reinacrylat), vinylacetate.The example of suitable elastomeric material has butadiene-styrene rubber, neoprene, EPDM (ethylene propylene diene rubber), ethylene-propylene-trimer rubber, acrylonitrile-butadiene rubber or hydrogenated nitrile-butadiene rubber.
When making according to flexible pipe of the present invention, the formation on surface that fiber inserts irregular, the orange peel shape of phenomenon in the inner flexible tube and outer flexible tube all obviously reduces.
PE yarn or aramid yarns that above-mentioned advantage utilization is picked out can realize, and utilize the nylon yarn of common low-shrinkage infeasible.Well known to a person skilled in the art the nylon yarn of low-shrinkage, especially nylon 6.6 polyfilament yarns are at least 2.5% to about 3.5% according to the hot blast shrinkage factor that DIN 53866 standards record under the condition of 180 ℃, 2 minutes and 5mN/tex pretension.Utilize the yarn of such low-shrinkage can not avoid the formation on surface of irregular, the orange peel shape of outer flexible tube.Before flexible pipe is made, that is to say before sulfuration just had required characteristic according to the fiber of the fabric enhancing section of flexible pipe of the present invention.
In flexible pipe according to the present invention, fiber fabric enhancing section, that basically made by aliphatic polyamide preferably has according to DIN 53866 standards hot blast shrinkage factor that determine, less than 2.3% under the condition of 180 ℃, 2 minutes and 5mN/tex pretension.
The fiber that is selected from the aliphatic polyamide class particularly preferably has according to DIN 53866 standards hot blast shrinkage factor that determine, less than 2.1% under the condition of 180 ℃, 2 minutes and 5mN/tex pretension.
Described aliphatic polyamide---fiber of fabric enhancing section is made by it basically---is preferably the mixture of polyamide 6, polyamide 6 .6, polyamide 4.6 or these polymer.
The fiber of fabric enhancing section is preferably polyfilament yarn.The Denier range of this polyfilament yarn is preferably between 350dtex and 2500dtex, between 700dtex and 2100dtex.The monofilament number of this polyfilament yarn is preferably between 70 and 280 monofilament.
Also can use by a plurality of polyfilament yarns, preferably by 1 to 3 structure that polyfilament yarn forms, this structure has the total fiber number up to 3000dtex, for example 940dtex * 3,700dtex * 3,940dtex * 2,1880 * 1,2100 * 1 and 1400 * 1.This yarn texture can have every meter 40 to 200 twists that turn.Not only increase thus the associativity of yarn, and improved endurance life.
For example by the spinning of the polymeric material of heating and melting being made the yarn for fabric enhancing section.
Then, utilize the described textile fabric of the wetting and appropriate stretching of oiling treatment, thereby obtain during this period the yarn strength of 660mN/tex to 970mN/tex and 16% to 28% elongation at break.Then, the yarn of described such stretching is owing to impact subsequently, heat and possible humidity relaxes.
At this, humidity range is 60-100% in the water vapour of heat.Alternatively, yarn also can be fully wetting by hot water.In the process of processing with hot water, in reactor, utilize 70 ℃ hot water around shower when yarn is preferred initial.Then water constantly be warmed up to 80 ℃ to 140 ℃ final temperature (heating rate be 1 ℃/min), and kept this temperature 10 to 40 minutes.Then, by washing cooling yarn with the water under the ambient temperature, and yarn is carried out drying.
In the process of utilizing steam to process, the guiding yarn is by being full of the container of steam under environmental pressure.Vapor (steam) temperature is preferably between 240 ℃ and 285 ℃.Vapours causes contraction.After the steam treatment, winding yarn again in surrounding air.Preferably process by these, the hot blast shrinkage factor of determining under the condition of 180 ℃, 2 minutes and 5mN/tex pretension according to DIN 53866 standards is between 1.3% and 2.5%, preferably between 1.3% and 2.3%.
Replacement is to the stretching of textile fabric and the processing of carrying out with hot water or steam subsequently, also can directly carry out steam treatment to described textile fabric and stretch simultaneously after spinning.Behind subsequently lax, obtain desired, according to DIN 53866 standards hot blast shrinkage factor that determine, between 1.3% and 2.5% under the condition of 180 ℃, 2 minutes and 5mN/tex pretension.
The fiber of fabric enhancing section equally also can be the cord fabric thread form.
In the another kind of preferred embodiment according to flexible pipe of the present invention, fabric enhancing section is arranged in the single layer that is embedded in elastomeric material.In this case, fabric enhancing section is positioned between the internal layer and skin of elastomeric material, that is to say, flexible pipe according to the present invention has the inner tube of being made by elastomeric material in the preferred embodiment, fabric enhancing section is positioned on this inner tube, and an outer tube is positioned in this fabric enhancing section, and this outer tube is preferably made by the elastomeric material identical with inner tube.Elastomeric material is preferred also between the fiber of fabric enhancing section.
Can utilize bonding improver, for example organically polyisocyanate salt/ester solution is processed the fiber of fabric enhancing section.Process the situation of the fiber of fabric enhancing section for utilizing bonding improver, fiber also can have the hot blast shrinkage factor greater than 2.5% before processing, prerequisite is, fiber utilize bonding improver have after processing requirement of the present invention less than 2.5% hot blast shrinkage factor.The fiber of preferred fabric enhancing section had just before utilizing bonding improver to process that the present invention requires less than 2.5% hot blast shrinkage factor.Yet flexible pipe according to the present invention is characterised in that, processes the fiber of fabric enhancing section without bonding improver, that is to say that the fiber of fabric enhancing section does not pass through bonding improvement particularly preferably.
Fabric enhancing section can exist with the form of knotwork or exist with the form around the spirally-wound fiber of inner flexible tube.Fabric strengthens the quality award from the ministry choosing and exists with the form of the especially circular yarn fabric of yarn fabric, braid especially circular knit or with the form of knitted fabric especially circular knitted fabric.
Fabric enhancing section brings high bursting strength, and has reduced the perceptible elongation of flexible pipe under high pressure.Simultaneously, fabric enhancing section so that flexible pipe can be when vacuum occurring collapsing not.
Flexible pipe according to the present invention is particularly suitable for using the liquid of heat, the special-purpose liquid, aqueous or aqueous solution.Therefore, the present invention is especially suitable for use as cooling water flexible pipe.Cooling water flexible pipe according to the present invention has improved hydrolytic resistance.
The present invention also comprises a kind of method of the flexible pipe for the manufacture of having fabric enhancing section.This method may further comprise the steps: extrude flexible pipe by elastomeric material; Periphery at the flexible pipe of extruding applies fabric enhancing section, and wherein fabric enhancing section is basically by being selected from the fibrous of aliphatic polyamide class; Extrude a coating to described fabric enhancing section by elastomeric material; And subsequently resulting flexible pipe is vulcanized, it is characterized in that, select the hot blast shrinkage factor less than 2.5%, preferably less than 2.3%, particularly preferably less than 2.1% fiber as fabric enhancing section, wherein this hot blast shrinkage factor is determined under the condition of 180 ℃, 2 minutes and 5mN/tex pretension according to DIN 53866 standards.
For vulcanizing, flexible pipe can be placed on the sclerosis plug, the shape of the flexible pipe that obtains thus is corresponding to the shape of sclerosis plug.For example can in saturated vapor, in autoclave, carry out described sulfuration.The flexible pipe of making preferably has crooked part or the turning is arranged in its length.
In a kind of preferred embodiment of the method according to this invention, do not utilize bonding improver to process the fiber of fabric enhancing section.Therefore the fiber of fabric enhancing section does not preferably pass through bonding improvement.

Claims (9)

1. a flexible pipe comprises elastomeric material and fabric enhancing section, wherein said fabric enhancing section
Basically by being selected from the fibrous of aliphatic polyamide class, it is characterized in that the hot blast shrinkage factor of determining according to DIN 53866 standards of employed fiber is less than 2.5% under the condition of 180 ℃, 2 minutes and 5mN/tex pretension.
2. flexible pipe according to claim 1 is characterized in that, the described hot blast shrinkage factor of described fiber is less than 2.3%.
3. flexible pipe according to claim 2 is characterized in that, the described hot blast shrinkage factor of described fiber is less than 2.1%.
4. a described flexible pipe in 3 according to claim 1 is characterized in that, the described fiber utilization bonding improver of described fabric enhancing section is processed; Utilizing before bonding improver processes, described fiber has described hot blast shrinkage factor.
5. a described flexible pipe in 3 according to claim 1 is characterized in that, the described fiber of described fabric enhancing section does not pass through bonding improvement.
6. will be according to claim 1 a described flexible pipe in 5 as the application of cooling medium flexible pipe.
7. the method for the manufacture of the flexible pipe with fabric enhancing section may further comprise the steps: extrude flexible pipe by elastomeric material; Fabric enhancing section is applied on the periphery of the described flexible pipe of extruding, and wherein said fabric enhancing section is basically by being selected from the fibrous of aliphatic polyamide class; Extrude a coating to described fabric enhancing section by elastomeric material; And subsequently resulting flexible pipe is vulcanized, it is characterized in that, select the hot blast shrinkage factor less than 2.5% fiber as fabric enhancing section, wherein said hot blast shrinkage factor is determined under the condition of 180 ℃, 2 minutes and 5mN/tex pretension according to DIN 53866 standards.
8. method according to claim 7 is characterized in that, select the hot blast shrinkage factor less than 2.3% fiber as fabric enhancing section.
9. according to claim 7 or 8 described methods, it is characterized in that, select the hot blast shrinkage factor less than 2.1% fiber as fabric enhancing section.
CN2008801254281A 2008-01-23 2008-12-18 Reinforced hose Expired - Fee Related CN101925454B (en)

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EP2008000481 2008-01-23
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PCT/EP2008/067835 WO2009092502A1 (en) 2008-01-23 2008-12-18 Reinforced hose

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CN101925454A (en) 2010-12-22
ATE508863T1 (en) 2011-05-15
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WO2009092502A1 (en) 2009-07-30
JP5425098B2 (en) 2014-02-26
KR20100111297A (en) 2010-10-14
KR101498915B1 (en) 2015-03-05
RU2010134897A (en) 2012-02-27
US20110114214A1 (en) 2011-05-19
EP2234801A1 (en) 2010-10-06
EP2234801B1 (en) 2011-05-11

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